Mining Explosion-Proof and Intrinsically Safe Type Multi-Loop High-Voltage Vacuum Electromagnetic Switch

Mining explosion-proof and intrinsically safe type multi-loop high-voltage vacuum electromagnetic starter

Mining explosion-proof and intrinsically safe type multi-loop high-voltage vacuum electromagnetic starter is suitable for coal mine AC 3300V, frequency 50Hz, three-phase neutral point unearthed power supply system, local or remote control of three-phase asynchronous electric drive, to realize the centralized control of shearer, scraper conveyor, crusher, transfer machine, pumping station and other equipment in comprehensive mechanized coal mining face.

Model	QJGZ-2400/3300-8, 9, 10	QJGZ-1600/3300-6	QJGZ-800/3300-4, 2
rated operational current	2400A	1600A	800A
Number of output loops	8, 9, 10	6	4, 2
Vacuum isolation phase changer	3 Lines(Each line 800A)	2 Lines(Each line 800A)	1 Lines(Each line 800A)
Shape size including cable connector	3100*704*1219	3100*704*1219	1605*718*1205
Rated operational voltage	3300V  50Hz
vacuum contactor	Single circuit maximum rated current:400A
Input and output mode	Cable connector
Protection function	Leakage, leakage locking, insulation monitoring, overload, short circuit, overvoltage, undervoltage, phase break
Fault query	Query and store fault information for 30 days at any time
Display module	The man-machine interface adopts embedded system, and the running condition is monitored dynamically.
Communication mode	RS485,CAN Bus, Ethernet
Control mode	Proximity control, security remote control, network control